A large group of algae called diatoms have been found to be present in the meteorite that fell in Araganwila on 29 December 2012.

Director of the Buckingham Centre for Astrobiology, University of Buckingham and Professor at Cardiff University Prof. Chandra Wickramasinghe stated that this is the first compelling evidence for life existing outside the Earth.

The analysis was done in Cardiff by Mr. J.Wallis using a scanning electron microscope.

These structures appear to be mostly “fossilised”, and Prof. Chandra Wickremesinghe argues that they could not be contaminants from the Earth.

The meteorite that brought this material to Earth originally came from a comet which would have possessed vast interior liquid oceans full of microbial life.

Accordingly, the detection of living structures in the Polonnaruwa meteorite is powerful evidence for the theory that comets constitute the reservoir of life in the Universe, and that life on Earth was seeded by comets.